US3087950A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extreme pressure lubricant additive
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1959-12-21
•
Granted: 1963-04-30
•
Expires: 1979-12-21
Abstract
No abstract record available.
Inventors
- 👤 Victor C E Burnop
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:33
CPC Classifications
C; C10; C10M; C10M137/00; C10M137/02; C10M137/04; C10M137/10; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/16; C07F9/165; C07F9/1651; C10M2207/00; C10M2207/28; C10M2207/282; C10M2207/34; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10M2223/045; C10N; C10N2010/00; C10N2010/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
21 words
A COMPLEX OF A TERTIARY ALKYL PRIMARY AMINE CONTAINING 3 TO 24 CARBON ATOMS AND A COMPOUND HAVING THE GENERAL FORMULA:
Claim 2
Dependent Claim
21 words
A COMPLEX OF A TERTIARY ALKYL PRIMARY AMINE CONTAINING 3 TO 24 CARBON ATOMS AND A COMPOUND HAVING THE GENERAL FORMULA:
References Cited (Backward Citations)
US2899388A
Cited
US2689220A
Cited
US2838555A
Cited
US2737492A
Cited
US2884431A
Cited
US2906731A
Cited
US2923682A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-29 | 1966-10-29 | 1967-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-29 | 1970-10-29 | 1971-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-29 | 1974-10-29 | 1975-04-30 | $7700.00 | Window Closed / Lapsed |